作者:Zidar, Nace、Emanuel Cotman, Andrej、Sinnige, Wessel、Benek, Ondrej、Barančokova, Michaela、Zega, Anamarija、Peterlin Mašič, Lucija、Tomašič, Tihomir、Ilaš, Janez、Henderson, Sara R.、Mundy, Julia E.A.、Maxwell, Anthony、Stevenson, Clare E.M.、Lawson, David M.、Jan Sterk, Geert、Tosso, Rodrigo、Gutierrez, Lucas、Enriz, Ricardo D.、Kikelj, Danijel
DOI:10.1016/j.bmc.2024.117798
日期:——
phenethyl substituents attached to position 3 of the benzothiazole ring or to the carboxamide nitrogen atom were prepared and studied for their inhibition of DNA gyrase by supercoiling assay. Compared to inhibitors bearing the substituents at position 4 of the benzothiazole ring, the inhibition was attenuated by moving the substituent to position 3 and further to the carboxamide nitrogen atom. A co-crystal
制备了在苯并噻唑环的3位或甲酰胺氮原子上连接有苄基或苯乙基取代基的-(苯并噻唑-2-基)吡咯酰胺DNA促旋酶抑制剂,并通过超螺旋测定研究了它们对DNA促旋酶的抑制作用。与苯并噻唑环4位带有取代基的抑制剂相比,通过将取代基移至3位并进一步移至甲酰胺氮原子,抑制作用减弱。 ()-3-苄基-2-((4,5-二溴-1-吡咯-2-羰基)亚氨基)-2,3-二氢苯并[]-噻唑-6-甲酸的共晶结构()解决了与 GyrB24(ATP 酶亚结构域)的复合物的问题,揭示了此类抑制剂与 GyrB 亚基的 ATP 结合口袋的结合模式。通过分子中原子量子理论 (QTAIM) 分析,确定了关键的结合相互作用,并合理化了它们对结合的贡献。我们的研究表明,与苯并噻唑核心结合的苄基或苯乙基取代基与活性位点的亲脂性底层相互作用,该亲脂性底层主要由残基 Gly101、Gly102、Lys103 和 Ser108 组成。在苯并噻唑核心的